Google’s annual Doodle 4 Google competition is once again in full swing and this year, the search giant is asking young artists to dream big. The theme for this year’s competition, “If I could invent one thing to make the world a better place…” is tasked with tapping into the curiosity, possibility and imagination of the nation’s youth.

This year’s winner will receive some pretty sweet prizes. There’s a $30,000 college scholarship on the line, a trip to the Google Headquarters in California for the final awards ceremony, a Google Chromebook, an Android tablet and a t-shirt with their doodle on it.

Additionally, the winning student’s school will receive a $50,000 Google for Education technology grant and the best doodle will be featured on Google’s US homepage for 24 hours on June 9.

Doodlers will be grouped and judged based on five different grade groupings: grades K-3, grades 4-5, grades 6-7, grades 8-9 and grades 10-12. Google will select 250 state finalists (one winner in each grade group per state) which will then be narrowed down to the top 50 winners, five national finalists and finally, a single national winner.

Entries will be judged on artistic merit, creativity and theme communication. The deadline for sending in submissions in March 20 and the only rules are that doodles can’t contain copyrighted images or logos and only one doodle per student is allowed.